lady lips
The skin around the crotch area. Not the flappy ones you use to eat ice cream, but the ones that get all sweaty and smelly when you're sitting in a hot car.
'I can't breathe, my lady lips are smothering me!'
'She has the worst lady lips, like a sweaty sock in a sock drawer.'
'He said he didn't like the way my lady lips smelled after a workout.'